Wasn't it Go that became Vuzu and M-Net Series became M-Net Series Showcase? But you do kind of lose track of all these channel changes after a while.

I kinda remember that Mnet City is a rebranding of another channel and I would have sworn it was Mnet Series. But to this day I've never gotten the 'City' jist of it, e.g Mnet Action does action movies Mnet City does what exactly?